diff --git a/src/geo_iterator/grib_iterator.h b/src/geo_iterator/grib_iterator.h
index d97b6974b..adb00b41b 100644
--- a/src/geo_iterator/grib_iterator.h
+++ b/src/geo_iterator/grib_iterator.h
@@ -39,11 +39,6 @@ protected:
     mutable long e_; /**  current element */
     size_t nv_;      /**  number of values */
     const char* class_name_;
-
-private:
-    //grib_arguments* args_; [>*  args of iterator <]
-    size_t size_;
-    int inited_;
 };
 
 eccodes::geo_iterator::Iterator* gribIteratorNew(const grib_handle*, unsigned long, int*);
diff --git a/src/geo_iterator/grib_iterator_class_gaussian_reduced.h b/src/geo_iterator/grib_iterator_class_gaussian_reduced.h
index c67c6afb7..dbc334423 100644
--- a/src/geo_iterator/grib_iterator_class_gaussian_reduced.h
+++ b/src/geo_iterator/grib_iterator_class_gaussian_reduced.h
@@ -26,7 +26,6 @@ public:
     int destroy() override;
 
 private:
-    long Nj_;
     long isRotated_;
     double angleOfRotation_;
     double southPoleLat_;
diff --git a/src/geo_iterator/grib_iterator_class_healpix.h b/src/geo_iterator/grib_iterator_class_healpix.h
index 74ebdcec3..2760ef9b7 100644
--- a/src/geo_iterator/grib_iterator_class_healpix.h
+++ b/src/geo_iterator/grib_iterator_class_healpix.h
@@ -26,7 +26,7 @@ public:
     int destroy() override;
 
 private:
-    long Nsides_;
+    // long Nsides_;
     bool nested_;
 
     int iterate_healpix(long N);
diff --git a/src/geo_iterator/grib_iterator_class_lambert_azimuthal_equal_area.h b/src/geo_iterator/grib_iterator_class_lambert_azimuthal_equal_area.h
index 17cafff53..9b5da776c 100644
--- a/src/geo_iterator/grib_iterator_class_lambert_azimuthal_equal_area.h
+++ b/src/geo_iterator/grib_iterator_class_lambert_azimuthal_equal_area.h
@@ -26,8 +26,6 @@ public:
     int destroy() override;
 
 private:
-    long Nj_;
-
     int init_sphere(grib_handle*,
                     size_t, long, long,
                     double, double, double,
diff --git a/src/geo_iterator/grib_iterator_class_lambert_conformal.h b/src/geo_iterator/grib_iterator_class_lambert_conformal.h
index 6a70b536d..07e8e09e5 100644
--- a/src/geo_iterator/grib_iterator_class_lambert_conformal.h
+++ b/src/geo_iterator/grib_iterator_class_lambert_conformal.h
@@ -26,8 +26,6 @@ public:
     int destroy() override;
 
 private:
-    long Nj_;
-
     int init_sphere(const grib_handle*,
                     size_t, long, long,
                     double,
diff --git a/src/geo_iterator/grib_iterator_class_mercator.h b/src/geo_iterator/grib_iterator_class_mercator.h
index ce4e867b7..ae845f8af 100644
--- a/src/geo_iterator/grib_iterator_class_mercator.h
+++ b/src/geo_iterator/grib_iterator_class_mercator.h
@@ -25,8 +25,6 @@ public:
     int destroy() override;
 
 private:
-    long Nj_;
-
     int init_mercator(grib_handle*,
                       size_t, long, long,
                       double, double,
diff --git a/src/geo_iterator/grib_iterator_class_polar_stereographic.h b/src/geo_iterator/grib_iterator_class_polar_stereographic.h
index 6b35c9040..e2824408a 100644
--- a/src/geo_iterator/grib_iterator_class_polar_stereographic.h
+++ b/src/geo_iterator/grib_iterator_class_polar_stereographic.h
@@ -24,9 +24,6 @@ public:
     int init(grib_handle*, grib_arguments*) override;
     int next(double*, double*, double*) const override;
     int destroy() override;
-
-private:
-    long Nj_;
 };
 
 }  // namespace eccodes::geo_iterator
diff --git a/src/geo_iterator/grib_iterator_class_space_view.h b/src/geo_iterator/grib_iterator_class_space_view.h
index 72a11e68f..ec958615c 100644
--- a/src/geo_iterator/grib_iterator_class_space_view.h
+++ b/src/geo_iterator/grib_iterator_class_space_view.h
@@ -23,9 +23,6 @@ public:
     int init(grib_handle*, grib_arguments*) override;
     int next(double*, double*, double*) const override;
     int destroy() override;
-
-private:
-    long Nj_;
 };
 
 }  // namespace eccodes::geo_iterator